12157548 has 24 divisors (see below), whose sum is σ = 30550128. Its totient is φ = 3740736.

The previous prime is 12157469. The next prime is 12157553. The reversal of 12157548 is 84575121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38811 + ... + 39122.

It is an arithmetic number, because the mean of its divisors is an integer number (1272922).

Almost surely, 2^12157548 is an apocalyptic number.

It is an amenable number.

12157548 is an abundant number, since it is smaller than the sum of its proper divisors (18392580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12157548 is a wasteful number, since it uses less digits than its factorization.

12157548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77953 (or 77951 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The square root of 12157548 is about 3486.7675574951. The cubic root of 12157548 is about 229.9404256543.

The spelling of 12157548 in words is "twelve million, one hundred fifty-seven thousand, five hundred forty-eight".